The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Idle adjustment 91 740 Regina 700

posted by  Amazonphil on  Wed Jan 18 17:40 CST 2023
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

Just general info, Im not familiar with the regina system.

most cars have some means to measure airflow at idle, my 240 and 74 being bosche use an air mass meter, My Porsche 944 has an older "barn door" arrangement where a flap lifts and it has a rheostat which changes in continuity. Its a fairly similar Bosche system, but 85 , a bit earlier technology. Regina may be different again.

Point is the idle is usually very sensitive to any source of air which can enter the engine without being measured and accounted for, so any slight leaks may affect idle a lot. at wide open throttle the air fuel mix is probably less disturbed, proportionally.

I spoke ot a Porsche guy recently who described how he cobbled together his own smoke machine , he injected smoke, or something like it into the hoses , perhaps pressurizing them slightly while watching with a bright light for escaping smoke. he said he did find some leakage that he was not aware of , and fixed it which made his car idle a lot better.

maybe others have made up these "smoke injectors" or maybe they can be bought, not sure, others may know more on that. .







USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.